33mm FCR's - Bito R&D V's SP OEM

Moderator: Moderators

User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

There was two definite differences between each of these carb's I was expecting:

1. No TPS
ImageImage

2. No Choke
ImageImage

and as suspected both these items are missing on the Bito set. However there are plenty other differences too :smt004

Lets start at the top,
Needle is held in place with an Allen key plug and not a flat head screwdriver type.
Image
Needles are brass and not the coated aluminium ones in the SP's. (Different code as well)
Screw in billet inlets instead of cast :smt004
ImageImageImageImage

Throttle valves are stamped differently
ImageImage

No fuel rail by-pass line
ImageImage

Easy access for changing main jet
ImageImage

Kick ass decals :smt005
ImageImageImageImage

Kick ass MJ's
ImageImage

All jets are completely different , MJ is 50% larger in the Bito's


Anyone want a set of SP carb's - got to get myself a set of these puppies :smt007
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
jackdim
Posts: 135
Joined: Tue Jul 14, 2009 12:29 am
My Bike: yz490
Location: Bristol

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by jackdim »

How much for the SP carbs? And how much did the Bito ones cost?
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

jackdim wrote:How much for the SP carbs? And how much did the Bito ones cost?
Sorry but my SP carb's for sale was Tongue n cheek smiler

There are several used sets available over the next few day's - PM me if you want to discuss prices etc.....

Bito's are about 184K delivered UK with 40mm inlet rubbers, mounting bolts, Vacuum blanks and throttle cables.

There will be a race report on this set very soon :smt001

Oh, and I found out why some people think they are 32mm - the carb's are D-32 bodies
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
laurel.007
Posts: 3
Joined: Tue Oct 21, 2008 11:10 am
My Bike: kawasakizxr400l

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by laurel.007 »

Hello everybody,

I am the proud owner of one set of these beautiful pieces of work. Thanks to the Mori Man.

I enquired within this forum, about a month ago for a set of flatslides, and was put on to the Mori Man.

Like anyone, it's a bit un-nerving sending such a large sum of cash, hoping that you can trust the person at the other end to do what he says he'll do. Well, I'm here to tell you the Mori Man is the MAN. His customer service is of a VERY HIGH standard. He kept in contact with me every step of the way. He offered extra information and details, that I hadn't thought of. Probabley helps that he actually owns a ZXR400, and know what he's talking about.

My set had to be made up, so it took a few extra weeks of waiting, but well worth it. From the time they were sent, to the time I received them, it had only taken 3 business days. That's to Australia. (I'm just waiting on my mechanic (husband) to fit and tune them for me.)

I highly recommend the Mori Man's services to anyone and everyone, and I will definately use him again myself.

Thanks again, Mori Man. Your the Best.
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

Thanks laurel and your most welcome :smt001

looking forward to your race report on them :smt004

MM!
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
AFM327
L-plate hell
L-plate hell
Posts: 307
Joined: Sat Aug 02, 2008 4:29 pm

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by AFM327 »

More info would be good, I'm interested in a set for myself.
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

:smt017 What like?
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
AFM327
L-plate hell
L-plate hell
Posts: 307
Joined: Sat Aug 02, 2008 4:29 pm

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by AFM327 »

No TPS so any differences in setup, tuning, what's the cost to ship to the US?
AFM327
L-plate hell
L-plate hell
Posts: 307
Joined: Sat Aug 02, 2008 4:29 pm

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by AFM327 »

So any report of the Bito's? I'm interested to hear if there was any performance advantage over the stock flatslides?
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

I heard from laurel that on the Dyno they ran perfect but under use she had a small clitch high up in the range - think it was 10 or 11K , so I suggested a few things to her but have never heard back.

She did finish 2nd in her class at the end of the season :smt004

My SP carb's are performing well and with another sudden temp' drop I'm needing to up the mains again. Just now they are returning 47MPG doing pretty much city driving (Does not mean I'm going slow either :smt002 )

Got a set of the Bito brass needles for them but with current settings totally messed it up so will hunt out the list for the Bito carb's and order up the internals needed.

But happy to leave as is :smt001
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
Neosophist
Posts: 241
Joined: Wed May 28, 2008 2:18 pm
My Bike: VFR400R NC24

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Neosophist »

Just a quick question, how do the SP carbs peform on the street as i've been offered a set of SP carbs 'cheap' :D but my ZXR's going to be mainly for street use. :/

The carbs on it are well past their best having been sat for nearly 8 years in stale fuel / water :/ and rather than just get a new set of standards i'm tempted on the SP ones. (FCR erm something :P)

Just got a feeling if I go down the SP route it won't be for street use much longer :pmsl
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

It's what I have on my street bike - doesn't take much to have them running great :smt003

Up the mains and PAJ's and away you go !

Remember SP carb's were always designed for street use , they have a choke circuit on them and in OEM form are jetted for airbox and standard exhaust system.
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
Neosophist
Posts: 241
Joined: Wed May 28, 2008 2:18 pm
My Bike: VFR400R NC24

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Neosophist »

Mori Man wrote:It's what I have on my street bike - doesn't take much to have them running great :smt003

Up the mains and PAJ's and away you go !

Remember SP carb's were always designed for street use , they have a choke circuit on them and in OEM form are jetted for airbox and standard exhaust system.
Oh they do have a choke :D I didn't realise the SP was a proper 'street' bike :)

My memories of FCR's were crappy cold starts and cracking the throttle too quick (bog bog bog bog, vrrrrom :P )

These might be the way to go then as my current L1 carbs have 90 mains and pilot jets that just wont clear :/ Thats what 8 years of stale gas will do for ya :smt012 plus it opens up the whole 'tuning' route... that I can see i'll inveitably take.
User avatar
Mori Man
Blingmeister
Blingmeister
Posts: 1976
Joined: Thu May 10, 2007 3:30 pm
My Bike: ZXR400J2
Location: JAPAN

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Mori Man »

If your friendly with a jeweller ask them to put them in their sonic bath - that brings them back to pristine condition.

Crappy FCR's are just crappy FCR tuners setting them up :smt005

There are a fair few standard bikes equipped with them from factories.

Not sure for UK as summer doesn't get that hot ( :smt002 ) but here I need to do at least three main jet changes through the year , however running them in an airbox negates that need.

Summer = lean , Spring/Autumn = middle setting & Winter = Rich

Also recommend you get a high throttle kit (quick action) as these also help to stop the "bog" - if you do experience "bog" your just in the wrong gear :smt005
(Bog is usually caused by incorrect accelerator pump setting)

MM!
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
Dean12m
Posts: 3
Joined: Sun Apr 30, 2017 1:34 pm
My Bike: ZRX1200R

Re: 33mm FCR's - Bito R&D V's SP OEM

Post by Dean12m »

is Mori Man still about as im trying to buy a set of carbs?
Post Reply